Baci/Basi (; , ) and su kwan (Lao: ; Thai: , RTGS: su khwan; meaning "calling of the soul") is an important ceremony practised in Lao culture, Sipsong Panna, Northern Thailand and Northeastern Thailan
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3b16b05f52c6bfe674cc4f6af6b4d60b85afa0169fb82fb8f6b76ccf3f8653. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6509d463-b88d-4fa8-9645-5385f83c7353.json and https://artists.proofprofile.net/proofs/artist/6509d463-b88d-4fa8-9645-5385f83c7353.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccfe7130056098f96a3a94d7ec7df607442631293126154403f24d04401bddb. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42000770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbb6ea1532675df951af26fecb5d4fa1b7271f2c83be1034096f43a8f82533b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42000879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e32d2a9952d231d5ffb19382744504c1d62b08bdcb7b4f4d20d87dd9d3770b4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42100444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd08b9fe1aa3e97681bc1cd3c8e1404c87680b90ed2c3395872aaeaac58a548. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42100446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0b25b2af6b73ee304d2cd5812664e3a4b6bb967d202b8381d71357a8128ce3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42100449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a45eee8ad35d3ba4194d1ee53dbbda8760c0b93d6e77e8b68f9f4512d6e4a4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:48:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELV42100450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf647b755bdec2c65301561b63090971a1056d08080b3ea26fde42eac878974. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812424353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85a279cc43e1d1982a06a45070b7189ecf2c7f1dc85da3cc2d53ae8beb63839. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812410685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738589f2c405fff6a8a30fc1abd594d09a0646665384387bbb79a744742b82bb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82021503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa387dabdfb8b7733e8a3ccb55f958d18adc1425ddd208c1e33df4462bda173f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812420625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1cef5cdf15065fcafbc3a7df2fb80f050bf6b80e0600c2cb3e7144f25b25ae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812425199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a3e6b48c21fa0664ede63e2cab051b823b5c38721b3454c85caee5da929f5e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812423349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf647b755bdec2c65301561b63090971a1056d08080b3ea26fde42eac878974. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812424353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a3e6b48c21fa0664ede63e2cab051b823b5c38721b3454c85caee5da929f5e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812423349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f3364df95e6a15d099eb7ca28c911e0d203cf5b40323f9a425f0375a5cbbf6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812425892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e0e1ce10af3db0bdbea438d9c1cd326f1f60ca6830dbb215e2c86245b89400. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812529107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf647b755bdec2c65301561b63090971a1056d08080b3ea26fde42eac878974. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812424353.
Team Cali VS. Team Hassuna (Part 1 von 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4ff585ff66936dfb15adb7a9504d9bb015405e22b34212600439fe61c017aa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812423489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e95bdcdb7f86d6083431517636af70a0e2e300ca8484894b7c0f3a45b18156. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812530484.